Calculate the Molality of a 15

question 28

Multiple Choice

Calculate the molality of a 15.0% by mass solution of MgCl₂ in H₂O. The density of this solution is 1.127 g/mL.

• A) 0.0134 m
• B) 0.157 m
• C) 1.58 m
• D) 1.86 m
• E) 11.8 m

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Definitions:

Variable Cost

Costs that change in direct proportion to changes in the levels of production or sales activities, such as materials and labor costs.

Relevant Range

The range of activity or volume over which the assumed cost behavior is valid, beyond which cost patterns and relationships may change.

Average Costs

The total costs divided by the number of units produced, giving a per unit cost average.

Total Variable Cost

The sum of all costs that vary with output level, including materials, labor, and other costs that increase with production volume.